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arXiv 1502.02423math.QA
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关于$F_4$型的极小仿射

On the minimal affinizations of type $F_4$

Bing Duan, Jian-Rong Li, Yan-Feng Luo

摘要:

本文应用簇代数理论研究了$F_4$型量子仿射代数的极小仿射化。证明了一类$F_4$型极小仿射的$q$ -特征标满足一个方程组.此外,该系统中的最小仿射对应于某个簇代数$\mathscr{A}$中的某个簇变量。对于不属于该系统的$F_4$型的其它极小仿射,我们给出了包含这些极小仿射的代数方程.此外,我们引入了控制单项式图的概念,研究了量子仿射代数模的$q$ -特征标所满足的方程。

英文摘要:

In this paper, we apply the theory of cluster algebras to study minimal affinizations for the quantum affine algebra of type $F_4$. We show that the $q$-characters of a large family of minimal affinizations of type $F_4$ satisfy a system of equations. Moreover, a minimal affinization in this system corresponds to some cluster variable in some cluster algebra $\mathscr{A}$. For the other minimal affinizations of type $F_4$ which are not in this system, we give some conjectural equations which contains these minimal affinizations. Furthermore, we introduce the concept of dominant monomial graphs to study the equations satisfied by $q$-characters of modules of quantum affine algebras.

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